chromotrope

chro·mo·trope

(krō'mō-trōp),
Any of several dyes containing chromotropic acid that have the property of changing from red to blue on afterchroming.
References in periodicals archive ?
Limited Tenders are invited for Chromotrope 2R With 34 More Items.
Ribeiro, R., y otros cinco autores, Activated carbon xerogels for the removal of the anionic azo dyes Orange II and Chromotrope 2R byadsorption and catalytic wet peroxide oxidation, Chem.
Numerous newspaper accounts from the turn of the century describing both professional and amateur serpentine-dance performances refer to all manner of images, old and new, which were cast onto white frocks, from the kind of spinning-pattern, mechanical chromotrope effects used by lantern exhibitors in the mid-nineteenth century, to new, simple, specially designed images of flower heads, birds, and butterflies.
In order to evaluate the influence of a nitrite group, the degradation of an analogous pair of dyes such as Acid Red 29 and Chromotrope 2B can be mentioned.
Moreover special stains like Congo red and carbol chromotrope also proved to be a valuable diagnostic tool for detection of eosinophils because of their unique property to bind with eosinophils [26, 27].
Biopsy slides were stained with hematoxylin and eosin and with Gram chromotrope (4) and examined by microscopy.
The sections were then transferred to 70% ethyl alcohol for 2 min, rinsed in distilled water for 1 min, and stained in Halmi solution (0.2% light green SF, 1% orange G, and 0.5% Chromotrope 2R).
After embedding, 2-3 [micro]m thick sections were prepared and stained with hematoxylin-eosin (HE) for inflammatory infiltration and chromotrope 2R-brilliant green (C-2R-B) for demyelination.
Posteriormente, las muestras fueron fijadas y coloreadas con Chromotrope 2R (especifica para microsporidios).
La coloracion Chromotrope 2R fue empleada por sus ventajas comparativas sobre el PCR, a pesar que posee una sensibilidad del 80% y podrian dejarse de detectar algunas muestras positivas.
Quando os esporos apresentavam-se aglomerados, bem corados e no meio de uma reacao granulomatosa, sua identificacao no corte histologico tornava-se mais facil do que quando isolados, pouco corados ou sem reacao granulomatosa ao seu redor, uma vez que as celulas tambem apresentavam afinidade ao corante Chromotrope, mascarando a presenca do parasito.
(1996), por sua vez, submeteram amostras fecais positivas para microsporidios a coloracao de Gram, substituindo o ultimo passo, ou seja, trocando a passagem pela safranina pelo corante Chromotrope, preparado segundo WEBER et al.